3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjønnes
8 * \author Jürgen Spitzmüller
10 * Full author contact details are available in file CREDITS.
15 #include "InsetFloat.h"
16 #include "InsetCaption.h"
19 #include "BufferParams.h"
20 #include "BufferView.h"
23 #include "DispatchResult.h"
25 #include "FloatList.h"
26 #include "FuncRequest.h"
27 #include "FuncStatus.h"
28 #include "LaTeXFeatures.h"
30 #include "output_xhtml.h"
31 #include "ParIterator.h"
33 #include "texstream.h"
34 #include "TextClass.h"
36 #include "support/debug.h"
37 #include "support/docstream.h"
38 #include "support/gettext.h"
39 #include "support/lstrings.h"
41 #include "frontends/Application.h"
44 using namespace lyx::support;
49 // With this inset it will be possible to support the latex package
50 // float.sty, and I am sure that with this and some additional support
51 // classes we can support similar functionality in other formats
53 // By using float.sty we will have the same handling for all floats, both
54 // for those already in existance (table and figure) and all user created
55 // ones¹. So suddenly we give the users the possibility of creating new
56 // kinds of floats on the fly. (and with a uniform look)
59 // \newfloat{type}{placement}{ext}[within]
60 // type - The "type" of the new class of floats, like program or
61 // algorithm. After the appropriate \newfloat, commands
62 // such as \begin{program} or \end{algorithm*} will be
64 // placement - The default placement for the given class of floats.
65 // They are like in standard LaTeX: t, b, p and h for top,
66 // bottom, page, and here, respectively. On top of that
67 // there is a new type, H, which does not really correspond
68 // to a float, since it means: put it "here" and nowhere else.
69 // Note, however that the H specifier is special and, because
70 // of implementation details cannot be used in the second
71 // argument of \newfloat.
72 // ext - The file name extension of an auxiliary file for the list
73 // of figures (or whatever). LaTeX writes the captions to
75 // within - This (optional) argument determines whether floats of this
76 // class will be numbered within some sectional unit of the
77 // document. For example, if within is equal to chapter, the
78 // floats will be numbered within chapters.
80 // style - plain, boxed, ruled
81 // \floatname{float}{floatname}
84 // \floatplacement{float}{placement}
87 // \restylefloat{float}
89 // \listof{type}{title}
92 // ¹ the algorithm float is defined using the float.sty package. Like this
94 // \newfloat{algorithm}{htbp}{loa}[<sect>]
95 // \floatname{algorithm}{Algorithm}
97 // The intention is that floats should be definable from two places:
99 // - the "gui" (i.e. by the user)
101 // From layout files.
102 // This should only be done for floats defined in a documentclass and that
103 // does not need any additional packages. The two most known floats in this
104 // category is "table" and "figure". Floats defined in layout files are only
105 // stored in lyx files if the user modifies them.
108 // There should be a gui dialog (and also a collection of lyxfuncs) where
109 // the user can modify existing floats and/or create new ones.
111 // The individual floats will also have some settable
112 // variables: wide and placement.
116 //FIXME: why do we set in stone the type here?
117 InsetFloat::InsetFloat(Buffer * buf, string params_str)
118 : InsetCaptionable(buf)
120 string2params(params_str, params_);
121 setCaptionType(params_.type);
125 // Enforce equality of float type and caption type.
126 void InsetFloat::setCaptionType(std::string const & type)
128 InsetCaptionable::setCaptionType(type);
129 params_.type = captionType();
130 // check if the float type exists
131 if (buffer().params().documentClass().floats().typeExist(params_.type))
134 setLabel(bformat(_("ERROR: Unknown float type: %1$s"), from_utf8(params_.type)));
138 docstring InsetFloat::layoutName() const
140 return "Float:" + from_utf8(params_.type);
144 docstring InsetFloat::toolTip(BufferView const & bv, int x, int y) const
147 return InsetCaptionable::toolTip(bv, x, y);
149 OutputParams rp(&buffer().params().encoding());
150 return getCaptionText(rp);
154 void InsetFloat::doDispatch(Cursor & cur, FuncRequest & cmd)
156 switch (cmd.action()) {
158 case LFUN_INSET_MODIFY: {
159 InsetFloatParams params;
160 string2params(to_utf8(cmd.argument()), params);
161 cur.recordUndoInset(this);
163 // placement, wide and sideways are not used for subfloats
164 if (!params_.subfloat) {
165 params_.placement = params.placement;
166 params_.wide = params.wide;
167 params_.sideways = params.sideways;
170 if (params_.type != params.type)
171 setCaptionType(params.type);
172 // what we really want here is a TOC update, but that means
173 // a full buffer update
174 cur.forceBufferUpdate();
178 case LFUN_INSET_DIALOG_UPDATE: {
179 cur.bv().updateDialog("float", params2string(params()));
184 InsetCaptionable::doDispatch(cur, cmd);
190 bool InsetFloat::getStatus(Cursor & cur, FuncRequest const & cmd,
191 FuncStatus & flag) const
193 switch (cmd.action()) {
195 case LFUN_INSET_MODIFY:
196 case LFUN_INSET_DIALOG_UPDATE:
197 flag.setEnabled(true);
200 case LFUN_INSET_SETTINGS:
201 if (InsetCaptionable::getStatus(cur, cmd, flag)) {
202 flag.setEnabled(flag.enabled() && !params_.subfloat);
207 case LFUN_NEWLINE_INSERT:
208 if (params_.subfloat) {
209 flag.setEnabled(false);
216 return InsetCaptionable::getStatus(cur, cmd, flag);
221 bool InsetFloat::hasSubCaptions(ParIterator const & it) const
223 return (it.innerInsetOfType(FLOAT_CODE) || it.innerInsetOfType(WRAP_CODE));
227 void InsetFloatParams::write(ostream & os) const
230 // Better this than creating a parse error. This in fact happens in the
231 // parameters dialog via InsetFloatParams::params2string.
232 os << "senseless" << '\n';
236 if (!placement.empty())
237 os << "placement " << placement << "\n";
242 os << "wide false\n";
245 os << "sideways true\n";
247 os << "sideways false\n";
251 void InsetFloatParams::read(Lexer & lex)
253 lex.setContext("InsetFloatParams::read");
255 if (lex.checkFor("placement"))
257 lex >> "wide" >> wide;
258 lex >> "sideways" >> sideways;
262 void InsetFloat::write(ostream & os) const
266 InsetCaptionable::write(os);
270 void InsetFloat::read(Lexer & lex)
273 InsetCaptionable::read(lex);
274 setCaptionType(params_.type);
278 void InsetFloat::validate(LaTeXFeatures & features) const
280 if (support::contains(params_.placement, 'H'))
281 features.require("float");
283 if (params_.sideways)
284 features.require("rotfloat");
286 if (features.inFloat())
287 features.require("subfig");
289 features.useFloat(params_.type, features.inFloat());
290 features.inFloat(true);
291 InsetCaptionable::validate(features);
292 features.inFloat(false);
296 docstring InsetFloat::xhtml(XHTMLStream & xs, OutputParams const & rp) const
298 FloatList const & floats = buffer().params().documentClass().floats();
299 Floating const & ftype = floats.getType(params_.type);
300 string const & htmltype = ftype.htmlTag();
301 string const & attr = ftype.htmlAttrib();
303 odocstringstream ods;
304 XHTMLStream newxs(ods);
305 newxs << html::StartTag(htmltype, attr);
306 InsetText::XHTMLOptions const opts =
307 InsetText::WriteLabel | InsetText::WriteInnerTag;
308 docstring deferred = InsetText::insetAsXHTML(newxs, rp, opts);
309 newxs << html::EndTag(htmltype);
311 if (rp.inFloat == OutputParams::NONFLOAT) {
312 // In this case, this float needs to be deferred, but we'll put it
313 // before anything the text itself deferred.
314 deferred = ods.str() + '\n' + deferred;
316 // In this case, the whole thing is already being deferred, so
317 // we can write to the stream.
318 // Note that things will already have been escaped, so we do not
319 // want to escape them again.
320 xs << XHTMLStream::ESCAPE_NONE << ods.str();
326 void InsetFloat::latex(otexstream & os, OutputParams const & runparams_in) const
328 if (runparams_in.inFloat != OutputParams::NONFLOAT) {
329 if (!paragraphs().empty() && !runparams_in.nice)
330 // improve TexRow precision in non-nice mode
333 if (runparams_in.moving_arg)
337 OutputParams rp = runparams_in;
338 rp.moving_arg = true;
339 os << getCaption(rp);
341 // The main argument is the contents of the float. This is not a moving argument.
342 rp.moving_arg = false;
343 rp.inFloat = OutputParams::SUBFLOAT;
344 InsetText::latex(os, rp);
349 OutputParams runparams(runparams_in);
350 runparams.inFloat = OutputParams::MAINFLOAT;
352 FloatList const & floats = buffer().params().documentClass().floats();
353 string tmptype = params_.type;
354 if (params_.sideways && floats.allowsSideways(params_.type))
355 tmptype = "sideways" + params_.type;
356 if (params_.wide && floats.allowsWide(params_.type)
357 && (!params_.sideways ||
358 params_.type == "figure" ||
359 params_.type == "table"))
361 // Figure out the float placement to use.
362 // From lowest to highest:
363 // - float default placement
364 // - document wide default placement
365 // - specific float placement
367 string const buf_placement = buffer().params().float_placement;
368 string const def_placement = floats.defaultPlacement(params_.type);
369 if (!params_.placement.empty()
370 && params_.placement != def_placement) {
371 tmpplacement = params_.placement;
372 } else if (params_.placement.empty()
373 && !buf_placement.empty()
374 && buf_placement != def_placement) {
375 tmpplacement = buf_placement;
378 // Check if placement is allowed by this float
379 string const allowed_placement =
380 floats.allowedPlacement(params_.type);
382 string::const_iterator lit = tmpplacement.begin();
383 string::const_iterator end = tmpplacement.end();
384 for (; lit != end; ++lit) {
385 if (contains(allowed_placement, *lit))
389 // Force \begin{<floatname>} to appear in a new line.
390 os << breakln << "\\begin{" << from_ascii(tmptype) << '}';
391 if (runparams.lastid != -1)
392 os.texrow().start(runparams.lastid, runparams.lastpos);
393 // We only output placement if different from the def_placement.
394 // sidewaysfloats always use their own page,
395 // therefore don't output the p option that is always set
396 if (!placement.empty()
397 && (!params_.sideways || (params_.sideways && from_ascii(placement) != "p")))
398 os << '[' << from_ascii(placement) << ']';
401 InsetText::latex(os, runparams);
403 // Force \end{<floatname>} to appear in a new line.
404 os << breakln << "\\end{" << from_ascii(tmptype) << "}\n";
408 int InsetFloat::plaintext(odocstringstream & os, OutputParams const & runparams, size_t max_length) const
410 os << '[' << buffer().B_("float") << ' '
411 << floatName(params_.type) << ":\n";
412 InsetText::plaintext(os, runparams, max_length);
415 return PLAINTEXT_NEWLINE + 1; // one char on a separate line
419 int InsetFloat::docbook(odocstream & os, OutputParams const & runparams) const
421 // FIXME Implement subfloat!
423 os << '<' << from_ascii(params_.type) << '>';
424 int const i = InsetText::docbook(os, runparams);
425 os << "</" << from_ascii(params_.type) << '>';
431 bool InsetFloat::insetAllowed(InsetCode code) const
433 // The case that code == FLOAT_CODE is handled in Text3.cpp,
434 // because we need to know what type of float is meant.
441 return InsetCaptionable::insetAllowed(code);
446 void InsetFloat::setWide(bool w, bool update_label)
448 if (!buffer().params().documentClass().floats().allowsWide(params_.type))
449 params_.wide = false;
457 void InsetFloat::setSideways(bool s, bool update_label)
459 if (!buffer().params().documentClass().floats().allowsSideways(params_.type))
460 params_.sideways = false;
462 params_.sideways = s;
468 void InsetFloat::setSubfloat(bool s, bool update_label)
470 params_.subfloat = s;
476 void InsetFloat::setNewLabel()
478 docstring lab = _("float: ");
480 if (params_.subfloat)
481 lab = _("subfloat: ");
483 lab += floatName(params_.type);
485 FloatList const & floats = buffer().params().documentClass().floats();
487 if (params_.wide && floats.allowsWide(params_.type))
490 if (params_.sideways && floats.allowsSideways(params_.type))
491 lab += _(" (sideways)");
497 bool InsetFloat::allowsCaptionVariation(std::string const & newtype) const
499 return !params_.subfloat && newtype != "Unnumbered";
503 TexString InsetFloat::getCaption(OutputParams const & runparams) const
505 InsetCaption const * ins = getCaptionInset();
510 ins->getArgs(os, runparams);
513 // increase TexRow precision in non-nice mode
516 otexstringstream os2;
517 ins->getArgument(os2, runparams);
518 TexString ts = os2.release();
519 docstring & arg = ts.str;
521 if (arg.find(']') != docstring::npos)
522 arg = '{' + arg + '}';
531 void InsetFloat::string2params(string const & in, InsetFloatParams & params)
533 params = InsetFloatParams();
537 istringstream data(in);
540 lex.setContext("InsetFloat::string2params");
545 string InsetFloat::params2string(InsetFloatParams const & params)